<HTML>
<BODY BGCOLOR="white">
<PRE>
<FONT color="green">001</FONT>    /*<a name="line.1"></a>
<FONT color="green">002</FONT>     * Licensed to the Apache Software Foundation (ASF) under one or more<a name="line.2"></a>
<FONT color="green">003</FONT>     * contributor license agreements.  See the NOTICE file distributed with<a name="line.3"></a>
<FONT color="green">004</FONT>     * this work for additional information regarding copyright ownership.<a name="line.4"></a>
<FONT color="green">005</FONT>     * The ASF licenses this file to You under the Apache License, Version 2.0<a name="line.5"></a>
<FONT color="green">006</FONT>     * (the "License"); you may not use this file except in compliance with<a name="line.6"></a>
<FONT color="green">007</FONT>     * the License.  You may obtain a copy of the License at<a name="line.7"></a>
<FONT color="green">008</FONT>     *<a name="line.8"></a>
<FONT color="green">009</FONT>     *      http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a>
<FONT color="green">010</FONT>     *<a name="line.10"></a>
<FONT color="green">011</FONT>     * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a>
<FONT color="green">012</FONT>     * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.12"></a>
<FONT color="green">013</FONT>     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.13"></a>
<FONT color="green">014</FONT>     * See the License for the specific language governing permissions and<a name="line.14"></a>
<FONT color="green">015</FONT>     * limitations under the License.<a name="line.15"></a>
<FONT color="green">016</FONT>     */<a name="line.16"></a>
<FONT color="green">017</FONT>    package org.apache.commons.math3.ode;<a name="line.17"></a>
<FONT color="green">018</FONT>    <a name="line.18"></a>
<FONT color="green">019</FONT>    import java.util.ArrayList;<a name="line.19"></a>
<FONT color="green">020</FONT>    import java.util.List;<a name="line.20"></a>
<FONT color="green">021</FONT>    <a name="line.21"></a>
<FONT color="green">022</FONT>    import org.apache.commons.math3.exception.DimensionMismatchException;<a name="line.22"></a>
<FONT color="green">023</FONT>    import org.apache.commons.math3.exception.MaxCountExceededException;<a name="line.23"></a>
<FONT color="green">024</FONT>    <a name="line.24"></a>
<FONT color="green">025</FONT>    <a name="line.25"></a>
<FONT color="green">026</FONT>    /**<a name="line.26"></a>
<FONT color="green">027</FONT>     * This class represents a combined set of first order differential equations,<a name="line.27"></a>
<FONT color="green">028</FONT>     * with at least a primary set of equations expandable by some sets of secondary<a name="line.28"></a>
<FONT color="green">029</FONT>     * equations.<a name="line.29"></a>
<FONT color="green">030</FONT>     * &lt;p&gt;<a name="line.30"></a>
<FONT color="green">031</FONT>     * One typical use case is the computation of the Jacobian matrix for some ODE.<a name="line.31"></a>
<FONT color="green">032</FONT>     * In this case, the primary set of equations corresponds to the raw ODE, and we<a name="line.32"></a>
<FONT color="green">033</FONT>     * add to this set another bunch of secondary equations which represent the Jacobian<a name="line.33"></a>
<FONT color="green">034</FONT>     * matrix of the primary set.<a name="line.34"></a>
<FONT color="green">035</FONT>     * &lt;/p&gt;<a name="line.35"></a>
<FONT color="green">036</FONT>     * &lt;p&gt;<a name="line.36"></a>
<FONT color="green">037</FONT>     * We want the integrator to use &lt;em&gt;only&lt;/em&gt; the primary set to estimate the<a name="line.37"></a>
<FONT color="green">038</FONT>     * errors and hence the step sizes. It should &lt;em&gt;not&lt;/em&gt; use the secondary<a name="line.38"></a>
<FONT color="green">039</FONT>     * equations in this computation. The {@link AbstractIntegrator integrator} will<a name="line.39"></a>
<FONT color="green">040</FONT>     * be able to know where the primary set ends and so where the secondary sets begin.<a name="line.40"></a>
<FONT color="green">041</FONT>     * &lt;/p&gt;<a name="line.41"></a>
<FONT color="green">042</FONT>     *<a name="line.42"></a>
<FONT color="green">043</FONT>     * @see FirstOrderDifferentialEquations<a name="line.43"></a>
<FONT color="green">044</FONT>     * @see JacobianMatrices<a name="line.44"></a>
<FONT color="green">045</FONT>     *<a name="line.45"></a>
<FONT color="green">046</FONT>     * @version $Id: ExpandableStatefulODE.java 1416643 2012-12-03 19:37:14Z tn $<a name="line.46"></a>
<FONT color="green">047</FONT>     * @since 3.0<a name="line.47"></a>
<FONT color="green">048</FONT>     */<a name="line.48"></a>
<FONT color="green">049</FONT>    <a name="line.49"></a>
<FONT color="green">050</FONT>    public class ExpandableStatefulODE {<a name="line.50"></a>
<FONT color="green">051</FONT>    <a name="line.51"></a>
<FONT color="green">052</FONT>        /** Primary differential equation. */<a name="line.52"></a>
<FONT color="green">053</FONT>        private final FirstOrderDifferentialEquations primary;<a name="line.53"></a>
<FONT color="green">054</FONT>    <a name="line.54"></a>
<FONT color="green">055</FONT>        /** Mapper for primary equation. */<a name="line.55"></a>
<FONT color="green">056</FONT>        private final EquationsMapper primaryMapper;<a name="line.56"></a>
<FONT color="green">057</FONT>    <a name="line.57"></a>
<FONT color="green">058</FONT>        /** Time. */<a name="line.58"></a>
<FONT color="green">059</FONT>        private double time;<a name="line.59"></a>
<FONT color="green">060</FONT>    <a name="line.60"></a>
<FONT color="green">061</FONT>        /** State. */<a name="line.61"></a>
<FONT color="green">062</FONT>        private final double[] primaryState;<a name="line.62"></a>
<FONT color="green">063</FONT>    <a name="line.63"></a>
<FONT color="green">064</FONT>        /** State derivative. */<a name="line.64"></a>
<FONT color="green">065</FONT>        private final double[] primaryStateDot;<a name="line.65"></a>
<FONT color="green">066</FONT>    <a name="line.66"></a>
<FONT color="green">067</FONT>        /** Components of the expandable ODE. */<a name="line.67"></a>
<FONT color="green">068</FONT>        private List&lt;SecondaryComponent&gt; components;<a name="line.68"></a>
<FONT color="green">069</FONT>    <a name="line.69"></a>
<FONT color="green">070</FONT>        /** Build an expandable set from its primary ODE set.<a name="line.70"></a>
<FONT color="green">071</FONT>         * @param primary the primary set of differential equations to be integrated.<a name="line.71"></a>
<FONT color="green">072</FONT>         */<a name="line.72"></a>
<FONT color="green">073</FONT>        public ExpandableStatefulODE(final FirstOrderDifferentialEquations primary) {<a name="line.73"></a>
<FONT color="green">074</FONT>            final int n          = primary.getDimension();<a name="line.74"></a>
<FONT color="green">075</FONT>            this.primary         = primary;<a name="line.75"></a>
<FONT color="green">076</FONT>            this.primaryMapper   = new EquationsMapper(0, n);<a name="line.76"></a>
<FONT color="green">077</FONT>            this.time            = Double.NaN;<a name="line.77"></a>
<FONT color="green">078</FONT>            this.primaryState    = new double[n];<a name="line.78"></a>
<FONT color="green">079</FONT>            this.primaryStateDot = new double[n];<a name="line.79"></a>
<FONT color="green">080</FONT>            this.components      = new ArrayList&lt;ExpandableStatefulODE.SecondaryComponent&gt;();<a name="line.80"></a>
<FONT color="green">081</FONT>        }<a name="line.81"></a>
<FONT color="green">082</FONT>    <a name="line.82"></a>
<FONT color="green">083</FONT>        /** Get the primary set of differential equations.<a name="line.83"></a>
<FONT color="green">084</FONT>         * @return primary set of differential equations<a name="line.84"></a>
<FONT color="green">085</FONT>         */<a name="line.85"></a>
<FONT color="green">086</FONT>        public FirstOrderDifferentialEquations getPrimary() {<a name="line.86"></a>
<FONT color="green">087</FONT>            return primary;<a name="line.87"></a>
<FONT color="green">088</FONT>        }<a name="line.88"></a>
<FONT color="green">089</FONT>    <a name="line.89"></a>
<FONT color="green">090</FONT>        /** Return the dimension of the complete set of equations.<a name="line.90"></a>
<FONT color="green">091</FONT>         * &lt;p&gt;<a name="line.91"></a>
<FONT color="green">092</FONT>         * The complete set of equations correspond to the primary set plus all secondary sets.<a name="line.92"></a>
<FONT color="green">093</FONT>         * &lt;/p&gt;<a name="line.93"></a>
<FONT color="green">094</FONT>         * @return dimension of the complete set of equations<a name="line.94"></a>
<FONT color="green">095</FONT>         */<a name="line.95"></a>
<FONT color="green">096</FONT>        public int getTotalDimension() {<a name="line.96"></a>
<FONT color="green">097</FONT>            if (components.isEmpty()) {<a name="line.97"></a>
<FONT color="green">098</FONT>                // there are no secondary equations, the complete set is limited to the primary set<a name="line.98"></a>
<FONT color="green">099</FONT>                return primaryMapper.getDimension();<a name="line.99"></a>
<FONT color="green">100</FONT>            } else {<a name="line.100"></a>
<FONT color="green">101</FONT>                // there are secondary equations, the complete set ends after the last set<a name="line.101"></a>
<FONT color="green">102</FONT>                final EquationsMapper lastMapper = components.get(components.size() - 1).mapper;<a name="line.102"></a>
<FONT color="green">103</FONT>                return lastMapper.getFirstIndex() + lastMapper.getDimension();<a name="line.103"></a>
<FONT color="green">104</FONT>            }<a name="line.104"></a>
<FONT color="green">105</FONT>        }<a name="line.105"></a>
<FONT color="green">106</FONT>    <a name="line.106"></a>
<FONT color="green">107</FONT>        /** Get the current time derivative of the complete state vector.<a name="line.107"></a>
<FONT color="green">108</FONT>         * @param t current value of the independent &lt;I&gt;time&lt;/I&gt; variable<a name="line.108"></a>
<FONT color="green">109</FONT>         * @param y array containing the current value of the complete state vector<a name="line.109"></a>
<FONT color="green">110</FONT>         * @param yDot placeholder array where to put the time derivative of the complete state vector<a name="line.110"></a>
<FONT color="green">111</FONT>         * @exception MaxCountExceededException if the number of functions evaluations is exceeded<a name="line.111"></a>
<FONT color="green">112</FONT>         * @exception DimensionMismatchException if arrays dimensions do not match equations settings<a name="line.112"></a>
<FONT color="green">113</FONT>         */<a name="line.113"></a>
<FONT color="green">114</FONT>        public void computeDerivatives(final double t, final double[] y, final double[] yDot)<a name="line.114"></a>
<FONT color="green">115</FONT>            throws MaxCountExceededException, DimensionMismatchException {<a name="line.115"></a>
<FONT color="green">116</FONT>    <a name="line.116"></a>
<FONT color="green">117</FONT>            // compute derivatives of the primary equations<a name="line.117"></a>
<FONT color="green">118</FONT>            primaryMapper.extractEquationData(y, primaryState);<a name="line.118"></a>
<FONT color="green">119</FONT>            primary.computeDerivatives(t, primaryState, primaryStateDot);<a name="line.119"></a>
<FONT color="green">120</FONT>            primaryMapper.insertEquationData(primaryStateDot, yDot);<a name="line.120"></a>
<FONT color="green">121</FONT>    <a name="line.121"></a>
<FONT color="green">122</FONT>            // Add contribution for secondary equations<a name="line.122"></a>
<FONT color="green">123</FONT>            for (final SecondaryComponent component : components) {<a name="line.123"></a>
<FONT color="green">124</FONT>                component.mapper.extractEquationData(y, component.state);<a name="line.124"></a>
<FONT color="green">125</FONT>                component.equation.computeDerivatives(t, primaryState, primaryStateDot,<a name="line.125"></a>
<FONT color="green">126</FONT>                                                      component.state, component.stateDot);<a name="line.126"></a>
<FONT color="green">127</FONT>                component.mapper.insertEquationData(component.stateDot, yDot);<a name="line.127"></a>
<FONT color="green">128</FONT>            }<a name="line.128"></a>
<FONT color="green">129</FONT>    <a name="line.129"></a>
<FONT color="green">130</FONT>        }<a name="line.130"></a>
<FONT color="green">131</FONT>    <a name="line.131"></a>
<FONT color="green">132</FONT>        /** Add a set of secondary equations to be integrated along with the primary set.<a name="line.132"></a>
<FONT color="green">133</FONT>         * @param secondary secondary equations set<a name="line.133"></a>
<FONT color="green">134</FONT>         * @return index of the secondary equation in the expanded state<a name="line.134"></a>
<FONT color="green">135</FONT>         */<a name="line.135"></a>
<FONT color="green">136</FONT>        public int addSecondaryEquations(final SecondaryEquations secondary) {<a name="line.136"></a>
<FONT color="green">137</FONT>    <a name="line.137"></a>
<FONT color="green">138</FONT>            final int firstIndex;<a name="line.138"></a>
<FONT color="green">139</FONT>            if (components.isEmpty()) {<a name="line.139"></a>
<FONT color="green">140</FONT>                // lazy creation of the components list<a name="line.140"></a>
<FONT color="green">141</FONT>                components = new ArrayList&lt;ExpandableStatefulODE.SecondaryComponent&gt;();<a name="line.141"></a>
<FONT color="green">142</FONT>                firstIndex = primary.getDimension();<a name="line.142"></a>
<FONT color="green">143</FONT>            } else {<a name="line.143"></a>
<FONT color="green">144</FONT>                final SecondaryComponent last = components.get(components.size() - 1);<a name="line.144"></a>
<FONT color="green">145</FONT>                firstIndex = last.mapper.getFirstIndex() + last.mapper.getDimension();<a name="line.145"></a>
<FONT color="green">146</FONT>            }<a name="line.146"></a>
<FONT color="green">147</FONT>    <a name="line.147"></a>
<FONT color="green">148</FONT>            components.add(new SecondaryComponent(secondary, firstIndex));<a name="line.148"></a>
<FONT color="green">149</FONT>    <a name="line.149"></a>
<FONT color="green">150</FONT>            return components.size() - 1;<a name="line.150"></a>
<FONT color="green">151</FONT>    <a name="line.151"></a>
<FONT color="green">152</FONT>        }<a name="line.152"></a>
<FONT color="green">153</FONT>    <a name="line.153"></a>
<FONT color="green">154</FONT>        /** Get an equations mapper for the primary equations set.<a name="line.154"></a>
<FONT color="green">155</FONT>         * @return mapper for the primary set<a name="line.155"></a>
<FONT color="green">156</FONT>         * @see #getSecondaryMappers()<a name="line.156"></a>
<FONT color="green">157</FONT>         */<a name="line.157"></a>
<FONT color="green">158</FONT>        public EquationsMapper getPrimaryMapper() {<a name="line.158"></a>
<FONT color="green">159</FONT>            return primaryMapper;<a name="line.159"></a>
<FONT color="green">160</FONT>        }<a name="line.160"></a>
<FONT color="green">161</FONT>    <a name="line.161"></a>
<FONT color="green">162</FONT>        /** Get the equations mappers for the secondary equations sets.<a name="line.162"></a>
<FONT color="green">163</FONT>         * @return equations mappers for the secondary equations sets<a name="line.163"></a>
<FONT color="green">164</FONT>         * @see #getPrimaryMapper()<a name="line.164"></a>
<FONT color="green">165</FONT>         */<a name="line.165"></a>
<FONT color="green">166</FONT>        public EquationsMapper[] getSecondaryMappers() {<a name="line.166"></a>
<FONT color="green">167</FONT>            final EquationsMapper[] mappers = new EquationsMapper[components.size()];<a name="line.167"></a>
<FONT color="green">168</FONT>            for (int i = 0; i &lt; mappers.length; ++i) {<a name="line.168"></a>
<FONT color="green">169</FONT>                mappers[i] = components.get(i).mapper;<a name="line.169"></a>
<FONT color="green">170</FONT>            }<a name="line.170"></a>
<FONT color="green">171</FONT>            return mappers;<a name="line.171"></a>
<FONT color="green">172</FONT>        }<a name="line.172"></a>
<FONT color="green">173</FONT>    <a name="line.173"></a>
<FONT color="green">174</FONT>        /** Set current time.<a name="line.174"></a>
<FONT color="green">175</FONT>         * @param time current time<a name="line.175"></a>
<FONT color="green">176</FONT>         */<a name="line.176"></a>
<FONT color="green">177</FONT>        public void setTime(final double time) {<a name="line.177"></a>
<FONT color="green">178</FONT>            this.time = time;<a name="line.178"></a>
<FONT color="green">179</FONT>        }<a name="line.179"></a>
<FONT color="green">180</FONT>    <a name="line.180"></a>
<FONT color="green">181</FONT>        /** Get current time.<a name="line.181"></a>
<FONT color="green">182</FONT>         * @return current time<a name="line.182"></a>
<FONT color="green">183</FONT>         */<a name="line.183"></a>
<FONT color="green">184</FONT>        public double getTime() {<a name="line.184"></a>
<FONT color="green">185</FONT>            return time;<a name="line.185"></a>
<FONT color="green">186</FONT>        }<a name="line.186"></a>
<FONT color="green">187</FONT>    <a name="line.187"></a>
<FONT color="green">188</FONT>        /** Set primary part of the current state.<a name="line.188"></a>
<FONT color="green">189</FONT>         * @param primaryState primary part of the current state<a name="line.189"></a>
<FONT color="green">190</FONT>         * @throws DimensionMismatchException if the dimension of the array does not<a name="line.190"></a>
<FONT color="green">191</FONT>         * match the primary set<a name="line.191"></a>
<FONT color="green">192</FONT>         */<a name="line.192"></a>
<FONT color="green">193</FONT>        public void setPrimaryState(final double[] primaryState) throws DimensionMismatchException {<a name="line.193"></a>
<FONT color="green">194</FONT>    <a name="line.194"></a>
<FONT color="green">195</FONT>            // safety checks<a name="line.195"></a>
<FONT color="green">196</FONT>            if (primaryState.length != this.primaryState.length) {<a name="line.196"></a>
<FONT color="green">197</FONT>                throw new DimensionMismatchException(primaryState.length, this.primaryState.length);<a name="line.197"></a>
<FONT color="green">198</FONT>            }<a name="line.198"></a>
<FONT color="green">199</FONT>    <a name="line.199"></a>
<FONT color="green">200</FONT>            // set the data<a name="line.200"></a>
<FONT color="green">201</FONT>            System.arraycopy(primaryState, 0, this.primaryState, 0, primaryState.length);<a name="line.201"></a>
<FONT color="green">202</FONT>    <a name="line.202"></a>
<FONT color="green">203</FONT>        }<a name="line.203"></a>
<FONT color="green">204</FONT>    <a name="line.204"></a>
<FONT color="green">205</FONT>        /** Get primary part of the current state.<a name="line.205"></a>
<FONT color="green">206</FONT>         * @return primary part of the current state<a name="line.206"></a>
<FONT color="green">207</FONT>         */<a name="line.207"></a>
<FONT color="green">208</FONT>        public double[] getPrimaryState() {<a name="line.208"></a>
<FONT color="green">209</FONT>            return primaryState.clone();<a name="line.209"></a>
<FONT color="green">210</FONT>        }<a name="line.210"></a>
<FONT color="green">211</FONT>    <a name="line.211"></a>
<FONT color="green">212</FONT>        /** Get primary part of the current state derivative.<a name="line.212"></a>
<FONT color="green">213</FONT>         * @return primary part of the current state derivative<a name="line.213"></a>
<FONT color="green">214</FONT>         */<a name="line.214"></a>
<FONT color="green">215</FONT>        public double[] getPrimaryStateDot() {<a name="line.215"></a>
<FONT color="green">216</FONT>            return primaryStateDot.clone();<a name="line.216"></a>
<FONT color="green">217</FONT>        }<a name="line.217"></a>
<FONT color="green">218</FONT>    <a name="line.218"></a>
<FONT color="green">219</FONT>        /** Set secondary part of the current state.<a name="line.219"></a>
<FONT color="green">220</FONT>         * @param index index of the part to set as returned by {@link<a name="line.220"></a>
<FONT color="green">221</FONT>         * #addSecondaryEquations(SecondaryEquations)}<a name="line.221"></a>
<FONT color="green">222</FONT>         * @param secondaryState secondary part of the current state<a name="line.222"></a>
<FONT color="green">223</FONT>         * @throws DimensionMismatchException if the dimension of the partial state does not<a name="line.223"></a>
<FONT color="green">224</FONT>         * match the selected equations set dimension<a name="line.224"></a>
<FONT color="green">225</FONT>         */<a name="line.225"></a>
<FONT color="green">226</FONT>        public void setSecondaryState(final int index, final double[] secondaryState)<a name="line.226"></a>
<FONT color="green">227</FONT>            throws DimensionMismatchException {<a name="line.227"></a>
<FONT color="green">228</FONT>    <a name="line.228"></a>
<FONT color="green">229</FONT>            // get either the secondary state<a name="line.229"></a>
<FONT color="green">230</FONT>            double[] localArray = components.get(index).state;<a name="line.230"></a>
<FONT color="green">231</FONT>    <a name="line.231"></a>
<FONT color="green">232</FONT>            // safety checks<a name="line.232"></a>
<FONT color="green">233</FONT>            if (secondaryState.length != localArray.length) {<a name="line.233"></a>
<FONT color="green">234</FONT>                throw new DimensionMismatchException(secondaryState.length, localArray.length);<a name="line.234"></a>
<FONT color="green">235</FONT>            }<a name="line.235"></a>
<FONT color="green">236</FONT>    <a name="line.236"></a>
<FONT color="green">237</FONT>            // set the data<a name="line.237"></a>
<FONT color="green">238</FONT>            System.arraycopy(secondaryState, 0, localArray, 0, secondaryState.length);<a name="line.238"></a>
<FONT color="green">239</FONT>    <a name="line.239"></a>
<FONT color="green">240</FONT>        }<a name="line.240"></a>
<FONT color="green">241</FONT>    <a name="line.241"></a>
<FONT color="green">242</FONT>        /** Get secondary part of the current state.<a name="line.242"></a>
<FONT color="green">243</FONT>         * @param index index of the part to set as returned by {@link<a name="line.243"></a>
<FONT color="green">244</FONT>         * #addSecondaryEquations(SecondaryEquations)}<a name="line.244"></a>
<FONT color="green">245</FONT>         * @return secondary part of the current state<a name="line.245"></a>
<FONT color="green">246</FONT>         */<a name="line.246"></a>
<FONT color="green">247</FONT>        public double[] getSecondaryState(final int index) {<a name="line.247"></a>
<FONT color="green">248</FONT>            return components.get(index).state.clone();<a name="line.248"></a>
<FONT color="green">249</FONT>        }<a name="line.249"></a>
<FONT color="green">250</FONT>    <a name="line.250"></a>
<FONT color="green">251</FONT>        /** Get secondary part of the current state derivative.<a name="line.251"></a>
<FONT color="green">252</FONT>         * @param index index of the part to set as returned by {@link<a name="line.252"></a>
<FONT color="green">253</FONT>         * #addSecondaryEquations(SecondaryEquations)}<a name="line.253"></a>
<FONT color="green">254</FONT>         * @return secondary part of the current state derivative<a name="line.254"></a>
<FONT color="green">255</FONT>         */<a name="line.255"></a>
<FONT color="green">256</FONT>        public double[] getSecondaryStateDot(final int index) {<a name="line.256"></a>
<FONT color="green">257</FONT>            return components.get(index).stateDot.clone();<a name="line.257"></a>
<FONT color="green">258</FONT>        }<a name="line.258"></a>
<FONT color="green">259</FONT>    <a name="line.259"></a>
<FONT color="green">260</FONT>        /** Set the complete current state.<a name="line.260"></a>
<FONT color="green">261</FONT>         * @param completeState complete current state to copy data from<a name="line.261"></a>
<FONT color="green">262</FONT>         * @throws DimensionMismatchException if the dimension of the complete state does not<a name="line.262"></a>
<FONT color="green">263</FONT>         * match the complete equations sets dimension<a name="line.263"></a>
<FONT color="green">264</FONT>         */<a name="line.264"></a>
<FONT color="green">265</FONT>        public void setCompleteState(final double[] completeState)<a name="line.265"></a>
<FONT color="green">266</FONT>            throws DimensionMismatchException {<a name="line.266"></a>
<FONT color="green">267</FONT>    <a name="line.267"></a>
<FONT color="green">268</FONT>            // safety checks<a name="line.268"></a>
<FONT color="green">269</FONT>            if (completeState.length != getTotalDimension()) {<a name="line.269"></a>
<FONT color="green">270</FONT>                throw new DimensionMismatchException(completeState.length, getTotalDimension());<a name="line.270"></a>
<FONT color="green">271</FONT>            }<a name="line.271"></a>
<FONT color="green">272</FONT>    <a name="line.272"></a>
<FONT color="green">273</FONT>            // set the data<a name="line.273"></a>
<FONT color="green">274</FONT>            primaryMapper.extractEquationData(completeState, primaryState);<a name="line.274"></a>
<FONT color="green">275</FONT>            for (final SecondaryComponent component : components) {<a name="line.275"></a>
<FONT color="green">276</FONT>                component.mapper.extractEquationData(completeState, component.state);<a name="line.276"></a>
<FONT color="green">277</FONT>            }<a name="line.277"></a>
<FONT color="green">278</FONT>    <a name="line.278"></a>
<FONT color="green">279</FONT>        }<a name="line.279"></a>
<FONT color="green">280</FONT>    <a name="line.280"></a>
<FONT color="green">281</FONT>        /** Get the complete current state.<a name="line.281"></a>
<FONT color="green">282</FONT>         * @return complete current state<a name="line.282"></a>
<FONT color="green">283</FONT>         * @throws DimensionMismatchException if the dimension of the complete state does not<a name="line.283"></a>
<FONT color="green">284</FONT>         * match the complete equations sets dimension<a name="line.284"></a>
<FONT color="green">285</FONT>         */<a name="line.285"></a>
<FONT color="green">286</FONT>        public double[] getCompleteState() throws DimensionMismatchException {<a name="line.286"></a>
<FONT color="green">287</FONT>    <a name="line.287"></a>
<FONT color="green">288</FONT>            // allocate complete array<a name="line.288"></a>
<FONT color="green">289</FONT>            double[] completeState = new double[getTotalDimension()];<a name="line.289"></a>
<FONT color="green">290</FONT>    <a name="line.290"></a>
<FONT color="green">291</FONT>            // set the data<a name="line.291"></a>
<FONT color="green">292</FONT>            primaryMapper.insertEquationData(primaryState, completeState);<a name="line.292"></a>
<FONT color="green">293</FONT>            for (final SecondaryComponent component : components) {<a name="line.293"></a>
<FONT color="green">294</FONT>                component.mapper.insertEquationData(component.state, completeState);<a name="line.294"></a>
<FONT color="green">295</FONT>            }<a name="line.295"></a>
<FONT color="green">296</FONT>    <a name="line.296"></a>
<FONT color="green">297</FONT>            return completeState;<a name="line.297"></a>
<FONT color="green">298</FONT>    <a name="line.298"></a>
<FONT color="green">299</FONT>        }<a name="line.299"></a>
<FONT color="green">300</FONT>    <a name="line.300"></a>
<FONT color="green">301</FONT>        /** Components of the compound stateful ODE. */<a name="line.301"></a>
<FONT color="green">302</FONT>        private static class SecondaryComponent {<a name="line.302"></a>
<FONT color="green">303</FONT>    <a name="line.303"></a>
<FONT color="green">304</FONT>            /** Secondary differential equation. */<a name="line.304"></a>
<FONT color="green">305</FONT>            private final SecondaryEquations equation;<a name="line.305"></a>
<FONT color="green">306</FONT>    <a name="line.306"></a>
<FONT color="green">307</FONT>            /** Mapper between local and complete arrays. */<a name="line.307"></a>
<FONT color="green">308</FONT>            private final EquationsMapper mapper;<a name="line.308"></a>
<FONT color="green">309</FONT>    <a name="line.309"></a>
<FONT color="green">310</FONT>            /** State. */<a name="line.310"></a>
<FONT color="green">311</FONT>            private final double[] state;<a name="line.311"></a>
<FONT color="green">312</FONT>    <a name="line.312"></a>
<FONT color="green">313</FONT>            /** State derivative. */<a name="line.313"></a>
<FONT color="green">314</FONT>            private final double[] stateDot;<a name="line.314"></a>
<FONT color="green">315</FONT>    <a name="line.315"></a>
<FONT color="green">316</FONT>            /** Simple constructor.<a name="line.316"></a>
<FONT color="green">317</FONT>             * @param equation secondary differential equation<a name="line.317"></a>
<FONT color="green">318</FONT>             * @param firstIndex index to use for the first element in the complete arrays<a name="line.318"></a>
<FONT color="green">319</FONT>             */<a name="line.319"></a>
<FONT color="green">320</FONT>            public SecondaryComponent(final SecondaryEquations equation, final int firstIndex) {<a name="line.320"></a>
<FONT color="green">321</FONT>                final int n   = equation.getDimension();<a name="line.321"></a>
<FONT color="green">322</FONT>                this.equation = equation;<a name="line.322"></a>
<FONT color="green">323</FONT>                mapper        = new EquationsMapper(firstIndex, n);<a name="line.323"></a>
<FONT color="green">324</FONT>                state         = new double[n];<a name="line.324"></a>
<FONT color="green">325</FONT>                stateDot      = new double[n];<a name="line.325"></a>
<FONT color="green">326</FONT>            }<a name="line.326"></a>
<FONT color="green">327</FONT>    <a name="line.327"></a>
<FONT color="green">328</FONT>        }<a name="line.328"></a>
<FONT color="green">329</FONT>    <a name="line.329"></a>
<FONT color="green">330</FONT>    }<a name="line.330"></a>




























































</PRE>
</BODY>
</HTML>
